Concrete form



March 17, 1931. RUSH 1,796,400

CONCRETE FORM Filed Feb. 6, 1929 5 Sheets-Sheet 1 7 {I go WITNESS 1577 4BY ATTORNEY March 17, 1931. J U 1,796,400

JONCRETEI FORM Filed Feb. 6. 1929 5 Sheets-Sheet 2 MVu.

ATTORN EY March 17, 1931. H 1,796,400

CONCRETE FORM Filed Feb. 6, 1929 3 Sheets-$heet 5 3&3 u I 71 INVENTORWITNESS JET/"Zuni fivifyw BY Lflac. 76.0

ATTORI'Q EY Patented Mar. 17, 1931 PATENT OFFICE JAMES HENDERSON BUSH,OF ABILENE, TEXAS CONCRETE FORM Application filed February 6, 1929.Serial No. 337,998.

My invention relates to molds or forms for use in constructing rooms ofa building or other rectangular compartment.

An object of the invention is to provide a mold which may beconveniently set up for use and will effectively support sheetinsulating material in position to permit the application of concrete orother plastic material thereto. A further object of the invention is topro vide a mold or form of this character wherein the walls of the molddo not contact with the plastic material and are thus always retained ina clean condition.

The invention further provides a mold embodying a plurality of sectionswhich are adjustable to permit rooms or compartments of various sizes tobe formed. It is also an object of the invention to provide a moldembodying a plurality of adjustable walls having means for detachablyconnecting the ends thereof so that the mold structure may be readilyknocked down or set up for use.

With the preceding and other objects and advantages in mind theinvention consists in the novel combination of elements, constructionsand arrangements of parts and operations to be hereinafter specificallyreferred to, claimed and illustrated in the accompany ing drawings,wherein:

Figure 1 is a top plan view of my improved mold in position and showinga plastic wall structure surrounding the same; I

Fig. 2 is a side elevation of the mold;

Fig. 3 is a longitudinal sectional view;

Fig. 4 is a transverse section taken on line 44 of Fig. 2;

Fig. 5 is a fragmentary perspective illustrating one pair of theslidable sections embodied in the invention;

Fig. 6 is a top plan view of a modification of the invention; and

Fig. 7 is a transverse section taken on line 77 of Fig. 6; and Fig. 8 isa detail top plan view showing a different arrangement of the moldmembers.

Referring to the invention in detail and particularly to theconstruction disclosed in Figs. 1 to 5 inclusive a rectangular form is'50 provided consisting of parallel side walls 5 and end walls 6. Thewalls 5 and 6 are made up of slidably connectedsections of identicalconstruction, each consisting of a plurality of spaced horizontallyarranged bars 7 connected at their ends by-vertical cleats 8. Asparticularly illustrated in Fig. 2 the parallel bars of one section areslidably received between the bars of an adjacent section. Tlie cleats 8are located upon the inner faces of the bars 7 I and limit thelongitudinal adjustment of the sections. In other words the cleats 8 oftwo adjacent sections will abut when the walls are adjusted their fulllength. For the purpose of maintaining the sections in the desiredadjustment so that a form of predetermined size may be had adjustablefastenings 9 are carried by the cleats 8 and are adapted to bind againstthe bars 7. V

One end of the side walls 5 and one end of the end walls 6 are connectedtogether by hinges 9 mounted upon the inner faces of the cleats 8carried by the adjacent ends of these walls. In order to detachablyconnect the free ends of the hingedly connected walls with the remainingside and end walls, registering eyes 10 are carried by the adjacent endsof the walls which receive removable pins 11, the latter consistin oflengths of rods each formed with anger engaging loop 12 at its upperend. Thus it will be seen that the structure may be readily set up orcollapsed and folded into a comparatively small space when desired.

For the purpose of lending rigidity to the form when set up anadjustable brace is provided consisting of a pair of longitudinallyaligned overlapping beams 13 one of which carries a "pair ofsubstantially rectangular sleeves 14 through which the other beamslidably passes. A set screw 15 is associated with one of these sleevesfor binding engagement with one of the beams 13 to hold them inlongitudinally adjusted position. In practice the brace extendshorizontally from one end wall to the other with theends of the beamsresting on the upper edges of the end walls;

The extremities of the beams are provided with vertically extendingopenings 16 which receive upstanding'retaining pins 17 carried by theupper edges of the end walls. In actual practice the form is set up asillustrated in Fig. 1 with the walls braced at their lower edges bytemplets 18 temporarily secured to the floor by nails or other suitabletastenings 19. The templets are formed with bevelled ends 20 so thatthey may fit within the confines of the form and contact with the cleats8 at the corners of the structure.

Sheets 20a of wall insulating material are set against the outer facesof the walls to which coatings of plastic material 21 are applied in anywell known manner. If desired the plastic coating 21 may have a suitablereinforcing sheet 22 incorporated therein. For this purpose wires orother suitable fastening elements 23 will be driven through theinsulating sheet 20a to engage the reinforcing sheet and temporarilysecure the same until the plastic coating has been applied. After theplastic coating has set the form will be knocked down and removed. Alsothe insulating sheet 20a may be left in place or removed as desired.

In addition to the form being adapted to the construction of rectangularstructures it is also capable for use in forming L-corners. In thisconnection it is pointed out that slidable sections of any one of theside or end walls may be swung to the right angular position disclosedin Fig. 8. Also one of the sections of one of the side walls may beprovided with a door or window frame 7a so that a doorway or windowopening will be left in one of the walls of the room.

In Figs. 6 and 7 I have disclosed a modified embodiment of theinvention. This construction embraces a double walled mold into whichthe plastic material is poured or sprayed rather than being spread as inthe construction above defined. In this instance the form disclosed in.Fig. 1 is employed, consisting of the adjustable side walls 5 and endwalls 6. A second form is provided consisting of adjustable side walls22% arranged in spaced parallel relation to the side walls 5 andadjustable end walls 28a arranged in spaced parallel relation to the endwall 6. The walls 22a and 2350 are arranged with their ends in abuttingrelation and the end cleats 8 are secured to vertical uprights arrangedat the corners of the structure by nails or other temporary fasteningdevices 25. Panels of insulating material 26 are arranged against theopposed faces of both forms and the concrete poured or otherwise placedbetween the insulating sheet 26 from the top of the mold. In order toincorporate a reinforcing sheet 27 in the plastic structure lieingmolded retaining wires 28 are extended from the opposed sheet ofinsulating material at spaced intervals and support the reinforcingsheet in place.

I claim:

1. In an adjustable form a plurality of walls adapted to be set up inrectangular formation, each wall consisting of a plurality of identicalsections, each section comprising a plurality of spaced bars connectedtogether and slidably received between the bars of an adjacent section.

2. In an adjustable form a plurality of walls adapted to be set up inrectangular formation, each wall consisting of a plurality of identicalsections, each section comprising a plurality of spaced bars connectedtogether and slidably received between the bars of an adjacent section,and means carried by each of the sections and engageable with the barswhereby to hold the sections in longitudinally adjusted position.

3. In an adjustable form a plurality of walls adapted to be set up inrectangular formation, each wall consisting of a plurality of identicalsections, each section comprising a plurality of spaced bars connectedtogether and slidably received between the bars of an adjacent section,and means carried by each of the sections and engageable with the barswhereby to hold the sections in longitudinal adjusted position, anddetachable fasteniugs connected the ends of the wall.

4-. In a knock down form a plurality of walls adapted to be set up inrectangular formation, each wall including a plurality of sectionscomprising spaced parallel bars havintcrfitting slidable engagement, theend sections or" each wall being capable of being swung to a rightangular position with respect to such walls and means for detachablyconnecting the ends of the walls.

5. A temporary support for plastic walls comprising a plurality ofidentical sections, each including a plurality of horizontally arrangedspaced parallel bars and vertical cleats attached thereto, the bars ofone section being slidably and pivotally received between the bars of anadjacent section.

6. A temporary support for plastic walls comprising a plurality ofidentical sections, each including a plurality of horizontally arrangedspaced parallel bars and vertical cleats attached thereto, the bars ofone section being slidably and pivotally received between the bars of anadjacent section, the adjacent cleats of adjacent sections constitutingstops to limit the longitudinal adjustment of the sections with relationto each other.

Signed at Abilene in the county of Taylor and State of Texas this 22 dayof January A. I). one thousand nine hundred twenty nine (1929).

JAMES HENDERSON RUSH.

